How to keep 0,0 in Revit - as it is in dwg from which you acquire coordinates?

[Prvoime]

Allow me to clarify.

We must, by law, draw site plans on survey plans which are provided to us by the surveyor. This works pretty great because I don't have to fiddle with project north / true north angles, I just "Acquire coordinates", and done.

But, due to GIS system they use our whole country is ~5000km away from 0,0.

When I acquire coordinates survey point moves accordingly, as expected since I leave it pinned. Even if I do spot coordinate, they show exactly the same as that point in AutoCAD (don't mind different decimal point in the video, that's because units in AutoCAD are in meters and in Revit in centimeters).

When we're done with the building we have to send the site plan as dwg back to the surveyor. But when I export it, 0,0 is just places somewhere in the drawing, nowhere near where it's actually supposed to be (5000km away). I presume it's the Revit internal origin.

Surveyors flip when they see this.

I know the simple solution is just copy it into their dwg and be done with it, but I'd like to know is there a way to get it properly, directly from Revit.

Pretty convoluted explanation, here's a video I hope can clear things up a bit.

[ToanDN · Accepted solution]

When you export from revit to DWG, choose views instead of sheets, and choose shared coordinates instead of project base point.

[curtisridenour]

I use this reference all the time to remind myself of this process. It is counter intuitive to me and i dont do it enough to commit it to memory.

https://revitpure.com/blog/12-steps-to-create-a-shared-site-in-revit

https://revitpure.com/blog/13-tips-to-understand-revit-base-points-and-coordinate-system

[Prvoime]

---

@ToanDN wrote:

When you export from revit to DWG, choose views instead of sheets, and choose shared coordinates instead of project base point.

---

Well that was easier than I thought 🙂 Thank you!
Note to those who maybe read this in the future, remember to switch "One DWG unit is" to appropriate ones.

Funnily, when testing I seem to stumble on a bug. I left the project exactly as it is in the video, but when I opened it, this is how it looked. Looks like the building stayed in true north orientation but dwg link switched to project north. And I couldn't get it to align back as it should.

Bizarrely, I closed the Revit file, deleted the dwg completely from hard drive, reopened the Revit file, and it was shown there, in proper orientation!

This was just a test file, hopefully it won't happen in the real one 😕

[ToanDN]

---

@Prvoime wrote:

---

---

Funnily, when testing I seem to stumble on a bug. I left the project exactly as it is in the video, but when I opened it, this is how it looked. Looks like the building stayed in true north orientation but dwg link switched to project north. 

---

Not sure what happened but when you link the DWG, it is important do it in a site plan that oriented to Project North.  Then you can move/rotate the DWG link to match your model and acquire coordinates.